package Code03_Tree;

public class TreeNode {
    int val;
      TreeNode left;
      TreeNode right;

      TreeNode() {}

      TreeNode(int val) {
          this.val = val;
      }

      TreeNode(int val, TreeNode left, TreeNode right) {
          this.val = val;
          this.left = left;
          this.right = right;
      }
}
